Journal article
Estimating Subglottal Pressure via Airflow Interruption with Auditory Masking
Journal of voice, Vol.23(6), pp.653-657
11/01/2009
DOI: 10.1016/j.jvoice.2008.03.005
PMCID: PMC2918247
PMID: 18538988
Abstract
Current noninvasive measurement of subglottal pressure using airflow interruption often produces inconsistent results due to the elicitation of audio-laryngeal reflexes. Auditory feedback could be considered as a means of ensuring measurement accuracy and precision. The purpose of this study was to determine if auditory masking could be used with the airflow interruption system to improve intrasubject consistency. A prerecorded sample of subject phonation was played on a loop over headphones during the trials with auditory masking. This provided subjects with a target pitch and blocked out distracting ambient noise created by the airflow interrupter. Subglottal pressure was noninvasively measured using the airflow interruption system. Thirty subjects, divided into two equal groups, performed 10 trials without auditory masking and 10 trials with auditory masking. Group one performed the normal trials first, followed by the trials with auditory masking. Group two performed the auditory masking trials first, followed by the normal trials. Intrasubject consistency was improved by adding auditory masking, resulting in a decrease in average intrasubject standard deviation from 0.93 +/- 0.51 to 0.47 +/- 0.22 cm H2O (P < 0.001). Auditory masking can be used effectively to combat audio-laryngeal reflexes and aid subjects in maintaining constant glottal configuration and frequency, thereby increasing intrasubject consistency when measuring subglottal pressure. By considering auditory feedback, a more reliable method of measurement was developed. This method could be used by clinicians, as reliable, immediately available values of subglottal pressure are Useful in evaluating laryngeal health and monitoring treatment progress.
Details
- Title: Subtitle
- Estimating Subglottal Pressure via Airflow Interruption with Auditory Masking
- Creators
- Matthew R. Hoffman - University of Wisconsin School of Medicine and Public HealthJack J. Jiang - University of Wisconsin–Madison
- Resource Type
- Journal article
- Publication Details
- Journal of voice, Vol.23(6), pp.653-657
- DOI
- 10.1016/j.jvoice.2008.03.005
- PMID
- 18538988
- PMCID
- PMC2918247
- NLM abbreviation
- J Voice
- ISSN
- 0892-1997
- eISSN
- 1873-4588
- Publisher
- Elsevier
- Number of pages
- 5
- Grant note
- R01 DC008153 / National Institute on Deafness and Other Communication Disorders; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Deafness & Other Communication Disorders (NIDCD) R01DC008153 / NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS; United States Department of Health & Human Services; National Institutes of Health (NIH) - USA; NIH National Institute on Deafness & Other Communication Disorders (NIDCD)
- Language
- English
- Date published
- 11/01/2009
- Academic Unit
- Otolaryngology
- Record Identifier
- 9984366289402771
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